We need to record the parent's integer register context upon exception
entry to a separate non-volatile area. Why?
Because xcp.regs can move due to a context switch within the fork() system
call, be it either via interrupt or a synchronization point.
Fix this by adding a "sregs" area where the saved user context is placed.
The critical section within fork() is also unnecessary.
There was an error in the fork() routine when system calls are in use:
the child context is saved on the child's user stack, which is incorrect,
the context must be saved on the kernel stack instead.
The result is a full system crash if (when) the child executes on a
different CPU which does not have the same MMU mappings active.
Add support for etc files with absolute paths
usages:
```
add_board_rcsrcs(${CMAKE_CURRENT_SOURCE_DIR}/etc/build.prop)
``
Signed-off-by: xuxin19 <xuxin19@xiaomi.com>
for the citimon stats:
thread 0: thread 1:
enter_critical (t0)
up_switch_context
note suspend thread0 (t1)
thread running
IRQ happen, in ISR:
post thread0
up_switch_context
note resume thread0 (t2)
ISR continue f1
ISR continue f2
...
ISR continue fn
leave_critical (t3)
You will see, the thread 0, critical_section time is:
(t1 - t0) + (t3 - t2)
BUT, this result contains f1 f2 .. fn time spent, it is wrong
to tell user thead0 hold the critical lots of time but actually
not belong to it.
Resolve:
change the nxsched_suspend/resume_scheduler to real hanppends
Signed-off-by: ligd <liguiding1@xiaomi.com>
Summary
The original implement for exception handler is very simple and
haven't framework for breakpoint/watchpoint routine or brk instruction.
I refine the fatal handler and add framework for debug handler to
register or unregister. this is a prepare for watchpoint/breakpoint
implement
Signed-off-by: qinwei1 <qinwei1@xiaomi.com>
Passing `BIOC_FLUSH` to block driver to ensure that changes transfers ("flushes") to the block device
Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
Function `arm64_lowputc` corrupted the x1 register which is used in function `boot_stage_puts`.
Signed-off-by: ouyangxiangzhen <ouyangxiangzhen@xiaomi.com>
This script seems to assume GNU grep, which is not commonly
available as "grep" on some platforms. For examples, it's
more common to have it named "ggrep" on BSD-based systems
including macOS.
Ideally, I suppose we should avoid GNU dependencies like this
in general. But I'm not motivated enough to rewrite this script
in a portable way today.
cf. https://www.gnu.org/software/grep/manual/grep.html#grep-Programs-1
"/home/guoshichao/work_profile/vela_os/vela_car_5/nuttx/include/nuttx/crypto/blake2s.h", line 91: error #2118-D:
this attribute reduces the alignment of the typedef, and while that
will be respected for struct/field layout, the compiler will not
generate code to handle misaligned accesses for objects of this type
typedef uint32_t uint32_alias_t __attribute__((may_alias)) aligned_data(1);
^
Signed-off-by: guoshichao <guoshichao@xiaomi.com>
Switch wget to cURL tool for:
arm_gcc_toolchain()
arm64_gcc_toolchain()
gperf()
riscv_gcc_toolchain()
sparc_gcc_toolchain()
xtensa_esp32_gcc_toolchain()
wasi_sdk()
Used git clone --depth 1 a shallow clone with a history truncated to reduce the clone size for:
kconfig_frontends()
added ninja installation
Switch wget to cURL tool for:
arm_gcc_toolchain()
arm64_gcc_toolchain()
riscv_gcc_toolchain()
sparc_gcc_toolchain()
xtensa_esp32_gcc_toolchain()
xtensa_esp32s2_gcc_toolchain()
xtensa_esp32s3_gcc_toolchain()
wasi_sdk()
Used git clone --depth 1 a shallow clone with a history truncated to reduce the clone size for:
kconfig_frontends()
Summary:
- I noticed that caps is not correctly initialized.
- This commit fixes this issue.
Impact:
- None
Testing:
- Tested with spresense:wifi_smp + nxplayer
Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
If CONFIG_SMP is not enabled, riscv_cpuindex.c will not be compiled
anyway.
And for CONFIG_ARCH_FPU, if it's not enabled, riscv_fpucmp.c will not
be compiled.
So we can remove the unnecessary macro guard for up_cpu_index() and
up_fpucmp().
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
Summary:
When restoring rammap fpos, we check the return value to avoid potential problems caused by no error return if the restore fails.
Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
This is actually the same table as entrypoints, so just use the same data, which
can be set before booting any of the harts
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
The logical CPU index should be retrieved with this_cpu(); the
riscv_mhartid() returns the actual hart id of the SoC.
For mpfs target for example, NuttX can run on a single HART, for example on mhartid 2, but there is still just one logical CPU for the NuttX.
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
Master can send restart command to slave to reboot the slave core
Signed-off-by: mazhuang <mazhuang@xiaomi.com>
Signed-off-by: Yongrong Wang <wangyongrong@xiaomi.com>
Because locate the command at the end the resource table is unfriendly
when we want to support multi virtio devices instead only one virtio
rpmsg device.
Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
